added pillbox bunker and improved trenches

I flipped the sides, added bounderies, took away the easter egg and some trees to make the map more useable for less powerful computers.

I have completle canged the map design from a boring mucky mess to a greener more "ww1 like" map

*fixed bugs

*fixed artillery

*improved raven trench line

*added easter egg

no changes yet pleas tell me what you want, i can fix